Match the name of the animal (Column I), with one characteristics (Column II), and the phylum/class (Column III) to which it belongs

	Column I	Column II	Column III
1.	Ichthyophis	terrestrial	Reptilia
2.	Limulus	body covered by chitinous exoskeleton	Pisces
3.	Adamsia	radially symmetrical	Porifera
4.	Petromyzon	ectoparasite	Cyclostomata

A marine cartilaginous fish that can produce electric current is:

The diagram given below shows the germs layer. The animals having structures shown in the figures A and B are respectively called

In some Bilateria, the body is of many segments that show serial repetition of parts. Such segments are called as:
1. Myotomes
2. Metameres
3. Proglottides
4. Comb plates

The phylum with exclusively marine animals is:

Which of the following is not a feature of birds?

Chordates are not characterized by:

Notochord is derived from embryonic:
1. Ectoderm
2. Mesoderm
3. Endoderm
4. Ectoderm and Mesoderm

Identify the phylum where the body cavity is not lined by mesoderm, instead, the mesoderm is present as scattered pouches between ectoderm and endoderm :
1. Cnidaria
2. Platyhelminthes
3. Mollusca
4. Aschelminthes

Sponges are mostly: